DOOR APPARATUS

摘要

The present invention relates to a door device. A movable unit reciprocates along a rail unit formed on a supporting plate. The reciprocating movement of the movable unit is allowed by a first movement assisting unit, and a driving force required for the reciprocating movement of the movable unit is received from an operation transmission unit. A second movement assisting unit which is connected between the movable unit and the operation transmission unit allows the expansion of the movable unit and induces a door leaf to be smoothly opened and closed.